US118964A - Improvement in picket-pointers - Google Patents
Improvement in picket-pointers Download PDFInfo
- Publication number
- US118964A US118964A US118964DA US118964A US 118964 A US118964 A US 118964A US 118964D A US118964D A US 118964DA US 118964 A US118964 A US 118964A
- Authority
- US
- United States
- Prior art keywords
- picket
- block
- pointers
- improvement
- lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001976 improved Effects 0.000 description 8
- 241000186864 Weissella minor Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
- B24B19/165—Phonograph needles and the like
Definitions
- This invention relates to a new machine for pointing pickets and posts, and consists in a general arrangement of parts.
- a in the drawing represents a horse or frame, supporting my impro ved pointing apparatus. Its upper beam or piece a constitutes the support for the picket B to be pointed. In the lower part of the frame is a slot, b, wherein a box or block, d., is held between two wedges, e andj'.
- C is a forked lever, straddlin g the beam A, and pivoted, by a pin, g, to the block d. Above the beam A the lever carries the knife h, for pointing the picket.
- D is an adjustable head-block, against which the end of the picket is placed.
- a bolt or pin, 1'. secures the slotted head-block to the upper face of the beam A, but permits longitudinal adjustment of the same.
- the picket to be pointed is placed upon the face of the beam A, with its end against the headblock.
- the pivot g of the lever C is adjusted higher or lower in accordance with the thickness of the picket, so as to bring the knife to the requisite height. This adjustment is produced by means of wedges or keys, c and j', which hold the block at the desired height.
- the head-block is adjusted toward or away from the lever, according to the taper to be cut.
- the lever O is swung on its pivot so as to carry the knife through the end of the picket against thehead-block. This completes one side of the picket, after which the same is turned and similarly treated until all sides have been prepared in the desired manner.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Description
.j U25 J. W. MINER.
Picket Pointer.
Vl\lo.118,964. Patentedsep.12,1s71.
UNITED STATES PATENT CFEICE.
JOHN W. MINOR, OF MIDDLEBOROUGH, MASSACHUSETTS.
IMPROVEMENT IN PICKET-POINTERS.
To all whom it may concern:
Be it known that I, JOHN W. MINOR, of Middleborough, in the county of Plymouth and State of Massachusetts, have invented a new and Improved Picket-Pointer; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming a part of this specilication, in which- Figure 1 represents a side elevation of my improved picket-pointer. Fig. 2 is a transverse section of the same on the line c c, Fig. 1.
Similar letters of reference indicate corresponding parts.
This invention relates to a new machine for pointing pickets and posts, and consists in a general arrangement of parts.
A in the drawing represents a horse or frame, supporting my impro ved pointing apparatus. Its upper beam or piece a constitutes the support for the picket B to be pointed. In the lower part of the frame is a slot, b, wherein a box or block, d., is held between two wedges, e andj'. C is a forked lever, straddlin g the beam A, and pivoted, by a pin, g, to the block d. Above the beam A the lever carries the knife h, for pointing the picket.
D is an adjustable head-block, against which the end of the picket is placed. A bolt or pin, 1'., secures the slotted head-block to the upper face of the beam A, but permits longitudinal adjustment of the same.
The picket to be pointed is placed upon the face of the beam A, with its end against the headblock. The pivot g of the lever C is adjusted higher or lower in accordance with the thickness of the picket, so as to bring the knife to the requisite height. This adjustment is produced by means of wedges or keys, c and j', which hold the block at the desired height. The head-block is adjusted toward or away from the lever, according to the taper to be cut. Then the picket has been properly placed, the lever O is swung on its pivot so as to carry the knife through the end of the picket against thehead-block. This completes one side of the picket, after which the same is turned and similarly treated until all sides have been prepared in the desired manner.
Without desiring to claim separately any of the parts composing my improved machine, what I do esteem as new is- The forked lever C, carrying knife h, verticallyadjustable fulcrum-block d, and the headblock D secured by screw-bolt c' applied to the supportingbeam A, all constructed, arranged, and operating as shown and described.
JOHN W. MINOR.
Witnesses THOMAS W. PIERCE. FREDERIC L. WING.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US118964A true US118964A (en) | 1871-09-12 |
Family
ID=2188417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US118964D Expired - Lifetime US118964A (en) | Improvement in picket-pointers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US118964A (en) |
-
0
- US US118964D patent/US118964A/en not_active Expired - Lifetime
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